Growth of villi-microstructured bismuth vanadate (Vm-BiVO₄) for photocatalytic degradation of crystal violet dye

Abstract

In this work, villi-microstructured Au-loaded BiVO4 photocatalysts were successfully synthesized by hydrothermal method.

Tunable sulphur doping in CuFe2O4 for the efficient removal of arsenic through arsenomolybdate complex adsorption: kinetics, isothermal and mechanistic studies

“…The result demonstrates that adsorption capacity increased up to 188.8 mg g −1 (at 10 ppm) attributable to greater collision. 78 Above 10 ppm concentration, adsorption capacity decreases, as demonstrated in Fig. 6(a).…”

Tunable sulphur doping on CuFe2O4 nanostructures for the selective elimination of organic dyes from water

“…Presence of sulphur in the catalysts not only captures electrons but also prevents the recombination of charges (back reaction) and also can produce superoxide radicals ( ⋅ O 2 ‒ ) over active sites of catalyst by transporting electrons to oxygen 47 . Moreover, holes oxidize the H 2 O molecules into ˖ OH radicals, these hydroxyl radicals further enhance the dye adsorption at the surfaces of catalysts 88 , 89 . Due to higher dye adsorption at catalysts surfaces, rate of dye degradation is readily increased (Scheme 1 ).…”

Synthesis of CeO2/ZrO2/ZnO nano alloy oxide and investigation of photocatalysis of naphthol orange under sunlight

“…To maintain the equilibrium, a higher concentration of ROS must be used to degrade a higher concentration of dye if the catalyst amount remains constant. 37 Therefore, it is obvious that with an increasing quantity of dye, the degradation rate should decrease because the formation of ROS remains constant.…”